-49.72% is the change from 545 to 274
Calculation steps:
[( 274 - 545 ) ÷ 545] x 100 = -49.72%
Formula
Percentage change = [(274 - 545) / 545] x 100
Subtract the new number by the original number
274 - 545 = -271
-271 ÷ 545 = -0.4972477064220184
-0.4972477064220184 x 100 = -49.72%